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Preparation method of blue pigment for coating/ink-jet printing/nano-zirconia ceramic

A nano-zirconia, inkjet printing technology, applied in applications, coatings, inks, etc., can solve the problems of uneven particle size, wide particle size distribution, and different morphology of pigments, and achieve strong chemical stability and particle size. Narrow distribution, small particle effect

Pending Publication Date: 2020-09-22
JIANGXI JINHUAN PIGMENTS
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

The commonly used synthesis method for blue pigments is the solid-phase method. The pigment particles synthesized by this method are large and have a wide particle size distribution. They need to be further ball-milled to the nanometer level. Coloring power and other issues

Method used

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  • Preparation method of blue pigment for coating/ink-jet printing/nano-zirconia ceramic

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0027] A preparation method of blue pigment for coating / inkjet printing / nano zirconia ceramics, comprising the steps of:

[0028] (1) Take 5.75g CrCl 3 . 6H 2 O, 237.5g CoCl 2 . 6H 2 O, 502.5g AlCl 3 . 6H 2 O, 4.2gZnCl 2 Dissolved in 5000mL of water as liquid A; 250g of Na 2 CO 3 Dissolved in 5000mL of water to obtain liquid B; dissolved 0.5g polyethylene glycol-1000 in 2000mL of water to obtain liquid C; drop A and B into C to keep the pH at 8 to obtain liquid D. After stirring for 1 hour, wash with water until D is free. Until the ions are washed out, dry at 120°C and crush through 200 meshes to obtain E; mix 0.5 wt% yttrium, neodymium rare earth compound, 1 wt% borax, 2.5 w% white carbon black and E into a crucible, 900°C Calcined for 120 minutes, washed with water and jet milled.

Embodiment 2

[0030] Take 5.75g CrCl 3 . 6H 2 O, 237.5g CoCl 2 . 6H 2 O, 502.5g AlCl 3 . 6H 2 O, 4.2gZnCl 2 Soluble in 5000mL water as A 1 solution; 250 g Na 2 CO 3 Dissolved in 5000mL water as B 1 liquid; 0.5g polyethylene glycol-1000 dissolved in 2000mL water is C 1 ; put A 1 and B 1 Co-dropping in C to maintain pH 8 gives D 1 solution, stirred for 1 hour, washed with water until D 1 Until no ions are washed out, dry at 120°C and pulverize through 200 meshes for E 1 ; 0.5 wt% yttrium, neodymium rare earth compound, 1 wt% borax, 2.5 w% silica and E 1 Mix well and put into crucible, calcined at 1000°C for 60 minutes, washed with water and jet crushed.

Embodiment 3

[0032] Take 5.75g CrCl 3 . 6H 2 O, 237.5g CoCl 2 . 6H 2 O, 502.5g AlCl 3 . 6H 2 O, 4.2gZnCl 2 Soluble in 5000mL water as A 2 solution; 250 g Na 2 CO 3 Dissolved in 5000mL water as B 2 liquid; 0.5g polyethylene glycol-1000 dissolved in 2000mL water is C 2 ; put A 2 and B 2 Co-dropping in C to maintain pH 8 gives D 2 solution, stirred for 1 hour, washed with water until D 2 Until no ions are washed out, dry at 120°C and pulverize through 200 meshes for E 2 ; 2.5 w% silica and E 2 Mix well and put into crucible, calcined at 1000°C for 60 minutes, washed with water and jet crushed.

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Abstract

The invention discloses a preparation method of a blue pigment for coating / ink-jet printing / nano-zirconia ceramic. The preparation method for synthesizing the blue pigment by adopting a semi-liquid and semi-solid phase process disclosed by the invention comprises the following steps of: adding cobalt, aluminum and other metal salts and alkali or alkali metal salt dropwise into water at the same time, and conducting filter pressing, washing and drying to obtain a nano-precursor, uniformly mixing the precursor with rare earth compounds doped with co-stability yttrium and the like, white carbon black and a mineralizing agent according to a certain mass ratio, and performing calcining at 900DEG C-1000DEG C to obtain the blue pigment for coating / ink-jet printing / nano-zirconia ceramic. Accordingto the invention, the precursor is subjected to nanocrystallization, the high-temperature crystal transformation temperature is reduced to 900DEG C-1000DEG C from the original 1280DEG C, the materialafter crystal transformation directly reaches 2 microns or less without mechanical refining D50, the integrity, high specific surface area and stable chemical properties of the material are kept, andthe performance requirements of the fields of coatings, ink-jet printing, zirconia ceramics and the like are met.

Description

technical field [0001] The invention relates to a preparation of a pigment, in particular to a preparation method of a blue pigment for coating / ink-jet printing / nano zirconia ceramics. Background technique [0002] The blue pigment is generally cobalt-aluminum blue or cobalt-silicon blue, and the solid-phase method is the most commonly used method, but this method has problems such as high energy consumption, large particles, wide particle size distribution, and uneven color development. The resulting blue pigment also has a very high cobalt content. The popularity of modern antique bricks in 2017 has made black, white and gray tones become the mainstream of development, resulting in an increase in the amount of blue pigments. In addition, cobalt is used as a raw material for positive electrode materials such as lithium cobalt oxide, resulting in a sharp increase in the amount of cobalt, which eventually led to the emergence of cobalt oxide in 2017. From 160,000 / ton to 500,...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C09D7/61C09D11/322C09C1/00C04B35/63
CPCC09D7/61C09D11/322C09C1/0009C04B35/6303
Inventor 程兰兰陈仁华刘华锋李婧戴钰刘文明
Owner JIANGXI JINHUAN PIGMENTS
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